Half to frank tucker



' No. 608,390. Patented Au 2, I898.

' c. A. GILMAN.

SGALLUPING MACHINE.

(Application filed. June 18, 1897.)

(lo llodel.)

lnOerirer as PETERS ca. mom'u'ruoqwum own a c UNITED STATES PATENT OFFICE.

CHARLES A. GILMAN, OF WEARE, NEW HAMPSHIRE, ASSIGNOR OF ONE- HALF TO FRANK TUCKER, OF SAME PLACE.

SCALLOPING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 608,390, dated August 2, i898.

- Application filed June 18, 1897. Serial No. 641,281- (No model.) I

To all whom it may concern:

Be it known that 1, CHARLES A. GILMAN, a citizen of the United States, residing at North Weare, in the county of Hillsborough and State of New Hampshire, have invented certain new and useful Improvements in Scalloping-Machines; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art towhich it appertains to make and use the same.

This invention relates to stamping orcutting machines and it consists of a frame sup porting a bed-block and a standard carrying a reciprocal cutter, the object being to provide a simple, inexpensive, and eflicient machine in which the stroke of the cutter may be adjusted to the proper length to cut through the desired number of layers ofleather and to cut at each reverse motion of the gears. The invention will be fully set forth in the following specification and claims and clearly illustrated in the drawings accompanying and forming a part of the same, of which- Figure 1 is an elevation of the machine complete. Fig. 2 is a detached edge View of the standard which carries the gears and reciprocal cutter-frame and cutter. Figs. 3 and 4: are broken sections of the standard and a portion of the gearing, showing an adjustable stop for regulating the cutter. Fig. 5 is a detached broken elevation of the standard. Fig. 6 is a plan View of a bed-block upon which layers of leather may be placed to be cut and showing a section of a cutter in rela tive position thereto. Fig. 7 shows a strip of leather as it would appear after having been cut by the machine.

Similar reference-letters designate corresponding parts in all the views.

A represents a suitable frame upon which may be bolted a standard B. The upper portion of this standard is bifurcated for accommodating gearing comprising a gear segment whose crank-pin g transmits motion to the cutter-frame H by means'of the connectingbar I, which ispivoted to said frame at h.

The bifurcated standard Bis provided with 5 5 a dovetailed vertically-elongated projection 12 on one side, which forms a way to which the cutter-frame H is gibbed, and said outter-frame may be provided with an ear or projection carrying a set-screw h, bearing upon the top of the holding-shank j of the cutter J, which shank is provided with an elongated opening j for receiving a retaining-screw 7' The cutter-blade J is curved in a shape to form the adjacent portions of two scallops, as

seen best in Fig. 6, which shows said blade in sectional plan view in proper relative position above the bed-block K, which in this same view is shown in plan, having perforations for bolting it to a frame A. The up-. 70

per face of said bed-block is recessed for the reception of a block 7c, formed of wood or other suitable soft material, which will not destroy the cutting edge of the cutter J, and

the top of said bed-block is also provided with a suitable Work-plate 70 (Shown in elevation in Fig. 1 and by dotted lines in plan View in Fig. 6.)

The layers of leather to be scalloped are held' upon the work-plate by the left hand of an operator, either with or without a pattern, While his right hand grasps the operatingcrank F, which is shown in Fig. 1, at the cen ter of its stroke, with the cutter J resting on the block 70, a movement of said operating crank in either direction raising the cutter, thus making it obvious that a single stroke in either direction drives the cutter through the work and raises it again. The movement of said crank and stroke of the cutter is limo ited by means of curvilinear grooves 0 0 formed in the gear-segment C, which are engaged by stop-pins placed in either side of the bifurcated standard B, the longest grooves 0' giving the full stroke by means of the pin 5 L, which is rigidly secured to said bifurcated standard, while the shorter groove 0 may be engaged by the spring-actuated stop-pin M,.as

seen in Figs. 3 and 4, in which said pin is shown on an enlarged scale and having a portion of its diameter reduced, as at m, for carryinga helical spring N, acting between the shoulder m of said pin M and the shoulder b of the perforation b of said standard B. The outer end of said pin M is fitted with a button P, carrying a lug or pin 1), and the standard 13 has a boss If, through which the spring-actuated pin M passes, said boss being slotted at one side, as at Z)". By turning the button P so that the lug or pin 1) may enter said slot Zr the spring-actuated pin engages the groove 0' of the gear-segment C, as in Fig. 3, thereby reducing the stroke of the cutter J to that required for a few layers of leather to be scalloped; but when it is desired to cut a greater number of layers of leather the button P is drawn outward and turned slightly, causing the lug or pin 1) to rest upon the face of the boss b disengaging the pin M from the groove 0 and the stroke may then be increased to that limited by the fixed pin L.

X represents a piece of leather after being out by the machine.

Having described my invention, what I claim is A stamping or cutting machine consisting of a frame supportingabed-block and astandard carrying a reciprocal cutter, two spurgears, and a gear-segment meshing with one of said spur-gears and provided with one or more grooves, a stop pin or pins arranged in said standard and adapted to engage the grooves in said segment, a driving-bar connecting the cutter with a pin on a crank or disk secured to the shaft of one of said spur gears, and means for rotating the gear-segment, all substantially for the purpose set forth.

In testimony whereof I ailix my signature in presence of two witnesses.

CHARLES A. GILMAN.

Witnesses:

J. B. THURSTON, W. H. SULLIVAN. 

